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Analysis

  • max time kernel
    1800s
  • max time network
    1622s
  • platform
    windows7_x64
  • resource
    win7v20210410
  • submitted
    12-07-2021 16:55

General

  • Target

    toolspab2 (11).exe

  • Size

    315KB

  • MD5

    1d20e1f65938e837ef1b88f10f1bd6c3

  • SHA1

    703d7098dbfc476d2181b7fc041cc23e49c368f1

  • SHA256

    05cd7440851f13dd8f489bb3c06eba385d85d7d9a77a612049c04c541a88593d

  • SHA512

    f9d333abe1f721b8d45d7bc6b5f286af09a8d233bd1d41f0ad891840cf742364aeca2cb6ccd6543f56a8eaf32804f82f72f961d16d5ba663ad706d164915a196

Malware Config

Extracted

Family

smokeloader

Version

2020

C2

http://999080321newfolder1002002131-service1002.space/

http://999080321newfolder1002002231-service1002.space/

http://999080321newfolder3100231-service1002.space/

http://999080321newfolder1002002431-service1002.space/

http://999080321newfolder1002002531-service1002.space/

http://999080321newfolder33417-012425999080321.space/

http://999080321test125831-service10020125999080321.space/

http://999080321test136831-service10020125999080321.space/

http://999080321test147831-service10020125999080321.space/

http://999080321test146831-service10020125999080321.space/

http://999080321test134831-service10020125999080321.space/

http://999080321est213531-service1002012425999080321.ru/

http://999080321yes1t3481-service10020125999080321.ru/

http://999080321test13561-service10020125999080321.su/

http://999080321test14781-service10020125999080321.info/

http://999080321test13461-service10020125999080321.net/

http://999080321test15671-service10020125999080321.tech/

http://999080321test12671-service10020125999080321.online/

http://999080321utest1341-service10020125999080321.ru/

http://999080321uest71-service100201dom25999080321.ru/

rc4.i32
rc4.i32

Extracted

Family

redline

Botnet

1

C2

45.32.235.238:45555

Extracted

Family

redline

Botnet

0.1.28.7

C2

gishaobera.xyz:80

Signatures

  • Raccoon

    Simple but powerful infostealer which was very active in 2019.

  • RedLine

    RedLine Stealer is a malware family written in C#, first appearing in early 2020.

  • RedLine Payload 6 IoCs
  • SmokeLoader

    Modular backdoor trojan in use since 2014.

  • Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs
  • Downloads MZ/PE file
  • Executes dropped EXE 14 IoCs
  • Checks BIOS information in registry 2 TTPs 2 IoCs

    BIOS information is often read in order to detect sandboxing environments.

  • Deletes itself 1 IoCs
  • Loads dropped DLL 11 IoCs
  • Reads user/profile data of local email clients 2 TTPs

    Email clients store some user data on disk where infostealers will often target it.

  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Checks whether UAC is enabled 1 TTPs 1 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
  • Suspicious use of SetThreadContext 6 IoCs
  • Checks SCSI registry key(s) 3 TTPs 6 IoCs

    SCSI information is often read in order to detect sandboxing environments.

  • Delays execution with timeout.exe 1 IoCs
  • Modifies system certificate store 2 TTPs 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious behavior: MapViewOfSection 20 IoCs
  • Suspicious use of AdjustPrivilegeToken 13 IoCs
  • Suspicious use of FindShellTrayWindow 4 IoCs
  • Suspicious use of SendNotifyMessage 4 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\toolspab2 (11).exe
    "C:\Users\Admin\AppData\Local\Temp\toolspab2 (11).exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1032
    • C:\Users\Admin\AppData\Local\Temp\toolspab2 (11).exe
      "C:\Users\Admin\AppData\Local\Temp\toolspab2 (11).exe"
      2⤵
      • Loads dropped DLL
      • Checks SCSI registry key(s)
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      PID:1500
  • C:\Users\Admin\AppData\Local\Temp\DB.exe
    C:\Users\Admin\AppData\Local\Temp\DB.exe
    1⤵
    • Executes dropped EXE
    • Suspicious use of SetWindowsHookEx
    PID:1648
  • C:\Users\Admin\AppData\Local\Temp\272.exe
    C:\Users\Admin\AppData\Local\Temp\272.exe
    1⤵
    • Executes dropped EXE
    • Suspicious use of SetWindowsHookEx
    PID:1876
  • C:\Users\Admin\AppData\Local\Temp\550.exe
    C:\Users\Admin\AppData\Local\Temp\550.exe
    1⤵
    • Executes dropped EXE
    • Loads dropped DLL
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1496
    • C:\Users\Admin\AppData\Local\Temp\550.exe
      C:\Users\Admin\AppData\Local\Temp\550.exe
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      PID:1140
  • C:\Users\Admin\AppData\Local\Temp\9C4.exe
    C:\Users\Admin\AppData\Local\Temp\9C4.exe
    1⤵
    • Executes dropped EXE
    PID:660
  • C:\Users\Admin\AppData\Local\Temp\EA5.exe
    C:\Users\Admin\AppData\Local\Temp\EA5.exe
    1⤵
    • Executes dropped EXE
    • Checks BIOS information in registry
    • Loads dropped DLL
    • Checks whether UAC is enabled
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Modifies system certificate store
    PID:1252
    • C:\Windows\SysWOW64\cmd.exe
      cmd.exe /C timeout /T 10 /NOBREAK > Nul & Del /f /q "C:\Users\Admin\AppData\Local\Temp\EA5.exe"
      2⤵
        PID:524
        • C:\Windows\SysWOW64\timeout.exe
          timeout /T 10 /NOBREAK
          3⤵
          • Delays execution with timeout.exe
          PID:676
    • C:\Windows\SysWOW64\explorer.exe
      C:\Windows\SysWOW64\explorer.exe
      1⤵
        PID:1780
      • C:\Windows\explorer.exe
        C:\Windows\explorer.exe
        1⤵
          PID:1376
        • C:\Windows\SysWOW64\explorer.exe
          C:\Windows\SysWOW64\explorer.exe
          1⤵
            PID:2032
          • C:\Windows\explorer.exe
            C:\Windows\explorer.exe
            1⤵
              PID:1156
            • C:\Windows\SysWOW64\explorer.exe
              C:\Windows\SysWOW64\explorer.exe
              1⤵
                PID:1812
              • C:\Windows\explorer.exe
                C:\Windows\explorer.exe
                1⤵
                  PID:1988
                • C:\Windows\SysWOW64\explorer.exe
                  C:\Windows\SysWOW64\explorer.exe
                  1⤵
                    PID:768
                  • C:\Windows\explorer.exe
                    C:\Windows\explorer.exe
                    1⤵
                      PID:1092
                    • C:\Windows\SysWOW64\explorer.exe
                      C:\Windows\SysWOW64\explorer.exe
                      1⤵
                        PID:1796
                      • C:\Windows\system32\taskeng.exe
                        taskeng.exe {21F0B5F7-AA45-4A02-80BD-40759A9B4CD3} S-1-5-21-2513283230-931923277-594887482-1000:MRBKYMNO\Admin:Interactive:[1]
                        1⤵
                          PID:1364
                          • C:\Users\Admin\AppData\Roaming\ifujfsf
                            C:\Users\Admin\AppData\Roaming\ifujfsf
                            2⤵
                            • Executes dropped EXE
                            • Suspicious use of SetThreadContext
                            PID:1756
                            • C:\Users\Admin\AppData\Roaming\ifujfsf
                              C:\Users\Admin\AppData\Roaming\ifujfsf
                              3⤵
                              • Executes dropped EXE
                              PID:1752
                        • C:\Windows\system32\taskeng.exe
                          taskeng.exe {313253DD-8160-4465-A581-3199C8486905} S-1-5-21-2513283230-931923277-594887482-1000:MRBKYMNO\Admin:Interactive:[1]
                          1⤵
                            PID:656
                            • C:\Users\Admin\AppData\Roaming\ifujfsf
                              C:\Users\Admin\AppData\Roaming\ifujfsf
                              2⤵
                              • Executes dropped EXE
                              • Suspicious use of SetThreadContext
                              PID:1584
                              • C:\Users\Admin\AppData\Roaming\ifujfsf
                                C:\Users\Admin\AppData\Roaming\ifujfsf
                                3⤵
                                • Executes dropped EXE
                                • Loads dropped DLL
                                • Checks SCSI registry key(s)
                                • Suspicious behavior: MapViewOfSection
                                PID:660
                          • C:\Users\Admin\AppData\Local\Temp\38B2.exe
                            C:\Users\Admin\AppData\Local\Temp\38B2.exe
                            1⤵
                            • Executes dropped EXE
                            • Loads dropped DLL
                            • Suspicious use of SetThreadContext
                            • Suspicious use of AdjustPrivilegeToken
                            PID:2008
                            • C:\Users\Admin\AppData\Local\Temp\38B2.exe
                              C:\Users\Admin\AppData\Local\Temp\38B2.exe
                              2⤵
                              • Executes dropped EXE
                              • Suspicious use of AdjustPrivilegeToken
                              PID:936
                          • C:\Windows\system32\taskeng.exe
                            taskeng.exe {348BBEF2-7C4E-442B-987D-16AF8CBEB340} S-1-5-21-2513283230-931923277-594887482-1000:MRBKYMNO\Admin:Interactive:[1]
                            1⤵
                              PID:1664
                              • C:\Users\Admin\AppData\Roaming\ifujfsf
                                C:\Users\Admin\AppData\Roaming\ifujfsf
                                2⤵
                                • Executes dropped EXE
                                • Suspicious use of SetThreadContext
                                PID:340
                                • C:\Users\Admin\AppData\Roaming\ifujfsf
                                  C:\Users\Admin\AppData\Roaming\ifujfsf
                                  3⤵
                                  • Executes dropped EXE
                                  PID:1744

                            Network

                            MITRE ATT&CK Enterprise v6

                            Replay Monitor

                            Loading Replay Monitor...

                            Downloads

                            • memory/660-90-0x0000000000220000-0x00000000002B1000-memory.dmp

                              Filesize

                              580KB

                            • memory/660-93-0x0000000000400000-0x0000000002C3C000-memory.dmp

                              Filesize

                              40.2MB

                            • memory/768-129-0x0000000000090000-0x0000000000094000-memory.dmp

                              Filesize

                              16KB

                            • memory/768-130-0x0000000000080000-0x0000000000089000-memory.dmp

                              Filesize

                              36KB

                            • memory/936-169-0x0000000000400000-0x000000000041E000-memory.dmp

                              Filesize

                              120KB

                            • memory/936-171-0x0000000001E90000-0x0000000001E91000-memory.dmp

                              Filesize

                              4KB

                            • memory/936-166-0x0000000000400000-0x000000000041E000-memory.dmp

                              Filesize

                              120KB

                            • memory/1032-64-0x0000000000220000-0x000000000022C000-memory.dmp

                              Filesize

                              48KB

                            • memory/1092-135-0x0000000000060000-0x0000000000069000-memory.dmp

                              Filesize

                              36KB

                            • memory/1092-134-0x0000000000070000-0x0000000000075000-memory.dmp

                              Filesize

                              20KB

                            • memory/1140-106-0x0000000004D30000-0x0000000004D31000-memory.dmp

                              Filesize

                              4KB

                            • memory/1140-94-0x0000000000400000-0x000000000041E000-memory.dmp

                              Filesize

                              120KB

                            • memory/1140-98-0x0000000000400000-0x000000000041E000-memory.dmp

                              Filesize

                              120KB

                            • memory/1156-116-0x0000000000070000-0x0000000000079000-memory.dmp

                              Filesize

                              36KB

                            • memory/1156-117-0x0000000000060000-0x000000000006F000-memory.dmp

                              Filesize

                              60KB

                            • memory/1196-65-0x0000000003A50000-0x0000000003A67000-memory.dmp

                              Filesize

                              92KB

                            • memory/1196-157-0x0000000002CD0000-0x0000000002CE7000-memory.dmp

                              Filesize

                              92KB

                            • memory/1376-102-0x0000000000060000-0x000000000006C000-memory.dmp

                              Filesize

                              48KB

                            • memory/1376-101-0x0000000000070000-0x0000000000077000-memory.dmp

                              Filesize

                              28KB

                            • memory/1496-77-0x00000000012E0000-0x00000000012E1000-memory.dmp

                              Filesize

                              4KB

                            • memory/1496-82-0x0000000000D40000-0x0000000000D41000-memory.dmp

                              Filesize

                              4KB

                            • memory/1500-62-0x0000000075591000-0x0000000075593000-memory.dmp

                              Filesize

                              8KB

                            • memory/1500-60-0x0000000000400000-0x000000000040C000-memory.dmp

                              Filesize

                              48KB

                            • memory/1780-92-0x0000000000080000-0x00000000000EB000-memory.dmp

                              Filesize

                              428KB

                            • memory/1780-91-0x0000000000230000-0x00000000002A4000-memory.dmp

                              Filesize

                              464KB

                            • memory/1780-89-0x0000000071021000-0x0000000071023000-memory.dmp

                              Filesize

                              8KB

                            • memory/1796-140-0x0000000000080000-0x0000000000089000-memory.dmp

                              Filesize

                              36KB

                            • memory/1796-139-0x0000000000090000-0x0000000000095000-memory.dmp

                              Filesize

                              20KB

                            • memory/1812-122-0x0000000000080000-0x0000000000089000-memory.dmp

                              Filesize

                              36KB

                            • memory/1812-121-0x0000000000090000-0x0000000000095000-memory.dmp

                              Filesize

                              20KB

                            • memory/1988-125-0x00000000000E0000-0x00000000000EC000-memory.dmp

                              Filesize

                              48KB

                            • memory/1988-124-0x00000000000F0000-0x00000000000F6000-memory.dmp

                              Filesize

                              24KB

                            • memory/2008-164-0x0000000000480000-0x0000000000489000-memory.dmp

                              Filesize

                              36KB

                            • memory/2008-163-0x0000000004AF0000-0x0000000004AF1000-memory.dmp

                              Filesize

                              4KB

                            • memory/2008-161-0x0000000000A20000-0x0000000000A21000-memory.dmp

                              Filesize

                              4KB

                            • memory/2032-108-0x0000000000080000-0x000000000008B000-memory.dmp

                              Filesize

                              44KB

                            • memory/2032-107-0x0000000000090000-0x0000000000097000-memory.dmp

                              Filesize

                              28KB

                            • memory/2032-105-0x00000000734A1000-0x00000000734A3000-memory.dmp

                              Filesize

                              8KB